具有Oracle 12cR2 json功能的查询json数组

我正在使用Oracle（12cR2）json，但找不到查询包含某些元素的数组的方法。以下是测试代码：

CREATE TABLE json_array (
  id    NUMBER NOT NULL,
  array CLOB,
  CONSTRAINT json_array_pk PRIMARY KEY (id),
  CONSTRAINT json_array_chk_1 CHECK (array IS JSON)
);

INSERT INTO json_array (id, array) VALUES (1, '{"a":[1, 3]}');
INSERT INTO json_array (id, array) VALUES (2, '{"a":[2, 4, 6]}');
INSERT INTO json_array (id, array) VALUES (3, '{"a":[1, 2, 5]}');
INSERT INTO json_array (id, array) VALUES (4, '{"a":[2, 5]}');
INSERT INTO json_array (id, array) VALUES (5, '{"a":[5]}');
INSERT INTO json_array (id, array) VALUES (6, '{"a":[5, 2]}');


COMMIT;

创建域索引：

CREATE SEARCH INDEX idx_json_array ON json_array (array) FOR JSON;

我想查找包含数组元素2和5的所有行，而不考虑它们在数组中的顺序，即SQL应该返回id为3、4、6的行

我尝试了很多选择：

SQL1：

select * from json_array j  -- return any arrays containing 2
where json_exists(j.array, '$?(@.a[0] == 2)');

==>返回包含2:id=2、3、4、6的行

SQL2:

==>返回包含2或5的行：id=2、4、5、6

SQL3：

==>不返回行

SQL4:

==>返回包含2或5的行：id=2、3、4、5、6

SQL5:

==>返回包含2和5的行，其中2在5之前

返回所需内容的唯一SQL是： SQL6:

==>返回id=3、4、6

但是，当元素数量增加时，此解决方案可能会非常麻烦

问：SQL6是否有更好的方法返回相同的结果

用于测试12c R2的Oracle版本

提前谢谢

詹姆斯这有帮助吗

   SQL> with MY_TABLE as
  2  (
  3    select 1 as ID, '{"a":[1, 3]}' as ARRAY
  4      from DUAL
  5    union all
  6    select 2 as ID, '{"a":[2, 4, 6]}' as ARRAY
  7      from DUAL
  8    union all
  9    select 3 as ID, '{"a":[1, 2, 5]}' as ARRAY
 10      from DUAL
 11    union all
 12    select 4 as ID, '{"a":[2, 5]}' as ARRAY
 13      from DUAL
 14    union all
 15    select 5 as ID, '{"a":[5]}' as ARRAY
 16      from DUAL
 17    union all
 18    select 6 as ID, '{"a":[5, 2]}' as ARRAY
 19      from DUAL
 20  )
 21  select ID
 22    from MY_TABLE
 23   where json_exists(ARRAY,'$?(@.a == 2 && @.a == 5)')
 24  /

        ID
----------
         3
         4
         6

SQL>

---

这回答了我的问题。谢谢（很抱歉，我找不到将此答案标记为解决方案的方法）。

select * from json_array j  -- return arrays containing 2 at index 1
where json_exists(j.array, '$?(@.a[0] == 2  && @.a[0] == 5)');

select * from json_array j  -- returns arrays containing 2 OR 5
where json_textcontains(j.array, '$.a', '[2,5]');

select * from json_array j  
where json_textcontains(j.array, '$.a', '{[2] & [5]}');

select * from json_array j
where json_textcontains(j.array, '$.a', '[2]') AND json_textcontains(j.array, '$.a', '[5]');

   SQL> with MY_TABLE as
  2  (
  3    select 1 as ID, '{"a":[1, 3]}' as ARRAY
  4      from DUAL
  5    union all
  6    select 2 as ID, '{"a":[2, 4, 6]}' as ARRAY
  7      from DUAL
  8    union all
  9    select 3 as ID, '{"a":[1, 2, 5]}' as ARRAY
 10      from DUAL
 11    union all
 12    select 4 as ID, '{"a":[2, 5]}' as ARRAY
 13      from DUAL
 14    union all
 15    select 5 as ID, '{"a":[5]}' as ARRAY
 16      from DUAL
 17    union all
 18    select 6 as ID, '{"a":[5, 2]}' as ARRAY
 19      from DUAL
 20  )
 21  select ID
 22    from MY_TABLE
 23   where json_exists(ARRAY,'$?(@.a == 2 && @.a == 5)')
 24  /

        ID
----------
         3
         4
         6

SQL>